Activiti ServiceTask 接受Spring bean

Posted 2022-05-28 ESOO

当前做流程完成回调的功能，发现普通的 activiti:class 是不能自动注入spring bean的，类似如下的配置：

 

在网络上找到了相关解决方案，就是用activiti:expression 替换class，这样通过表达式加载的都是自定义的类，是从spring中加载的

 

第一个参数，execution是流程引擎的上下文，productApi是spring bean的id，web界面配置为：

 

监听类如下写

package com.xs.framework.activiti.tasks;

import com.xs.backProductFactory.api.product.ProductApi;
import com.xs.backProductFactory.common.enums.ProductStatusEnum;
import com.xs.backProductFactory.dto.ResponseResult;
import com.xs.backProductFactory.dto.product.ProductDto;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.Expression;
import org.activiti.engine.delegate.JavaDelegate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Service;
import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import java.io.Serializable;
import java.util.Date;

/**
 * Created by xvshu on 2019/1/22 0022.
 */
@Service("productFactoryNewProductTask")
public class ProductFactoryNewProductTask implements Serializable 
    private static Logger logger = LoggerFactory.getLogger(ProductFactoryNewProductTask.class);


    public void execute(DelegateExecution delegateExecution,ProductApi productApi) throws Exception 
        logger.info("ProductFactoryNewProductTask begin！");
        Boolean val = (Boolean)delegateExecution.getVariable("pass");
//        Boolean val = (Boolean) pass.getValue(delegateExecution);
        logger.info("=ProductFactoryNewProductTask=>business: prossId: pass:",delegateExecution.getBusinessKey(),delegateExecution.getProcessInstanceId(),val.toString());

        //修改产品状态为审核中
        ProductDto pactDto = new ProductDto();
        pactDto.setId(Long.valueOf(delegateExecution.getBusinessKey()));
        pactDto.setStatus(ProductStatusEnum.product_status__publishing.getStatus());
        ResponseResult<Integer> responseResult = productApi.update(pactDto);

        logger.info("ProductFactoryNewProductTask end！");

    

亲测有效，有需要的直接拿走！